Swiss Army Knife
Short post because it's late and I'm tired, but Ruby's pretty damn useful if you have boring tasks you want to automate:
#!/usr/bin/env ruby
f = File.new(ARGV[0], 'r').read
f.each_byte do |b|
$stdout.write('0x'+b.to_s(16)+', ')
end
in case you ever wanted to take your big binary file and inline it as a C array.